Icom IC-F3021S Manuel d'utilisateur

SERVICE MANUAL VHF FM TRANSCEIVERSS-14303HZ-C1July 2006

5 - 35-2-3 TRANSMIT AMPLIFIERS (PA UNIT)The transmit signal from the VCO is amplifi ed to the transmit output level by the transmit amplifi ers.The tran

5 - 45-3 PLL CIRCUITS5-3-1 VOLTAGE CONTROLLED OSCILLATORS (VCOs; MAIN UNIT)VCO is an oscillator whose oscillating frequency is controlled by adding v

5 - 5CPU5Vregurator+5VreguratorS5VreguratorT5VreguratorR5VreguratorPower switchR315F701(PA unit )Q26–Q28IC17Q23Q24, Q49Q25VCCCPU5CPU+5VS5V“S5C”“PWON”V

5 - 65-5-1 CPU (IC22)PinNo.PortNameDescription1−3KR1−KR3Input ports for dealer-programmable keys.4−8KS0−KS4Output ports for dealer-programmable keys.9

SECTION 6 ADJUSTMENT PROCEDURES6-1 PREPARATIONWhen adjusting IC-F3020 series, CS-F3020 CLONING SOFTWARE, CS-F3020 ADJ ADJUSTMENT SOFTWARE (Rev. 1.0

6 - 2IC-F3020 seriesFMdeviation meterOsciiloscopeto the antenna connectorAttenuator10 dB or 20 dBRF power meter0.1–10 W/50 FrequencycounterStandard

6 - 3• PC SCREEN EXSAMPLEReference frequencyReceive sensitivity (Manually)PLL lock voltage presetS-meterReload data PLL lock voltage (verify)Squelch*;

6 - 46-2 FREQUENCY ADJUSTMENTSelect an adjustment item using [↑] / [↓] keys, then set to the specifi ed value using [←] / [→] keys on the connected PC’

6 - 56-3 TRANSMIT ADJUSTMENTSelect an adjustment item using [↑] / [↓] keys, then set to the specifi ed value using [←] / [→] keys on the connected PC’s

6 - 66-4 RECEIVE ADJUSTMENTSelect an adjustment item using [↑] / [↓] keys, then set to the specifi ed value using [←] / [→] keys on the connected PC’s

This service manual describes the latest service information for the IC-F3021T/S, IC-F3022T/S and IC-F3023T/S VHF FM TRANSCEIVERS at the time of publi

7 - 1SECTION 7 PARTS LISTM.=Mounted side (T: Mounted on the Top side, B: Mounted on the Bottom side)[MAIN UNIT] REF ORDER DESCRIPTION M. H/V NO. NO

7 - 2M.=Mounted side (T: Mounted on the Top side, B: Mounted on the Bottom side)S.=Surface mount[MAIN UNIT] REF ORDER DESCRIPTION M. H/V NO. NO.

7 - 3M.=Mounted side (T: Mounted on the Top side, B: Mounted on the Bottom side)[MAIN UNIT] REF ORDER DESCRIPTION M. H/V NO. NO. LOCATIONC27 403

7 - 4M.=Mounted side (T: Mounted on the Top side, B: Mounted on the Bottom side)S.=Surface mount[MAIN UNIT] REF ORDER DESCRIPTION M. H/V NO. NO.

7 - 5M.=Mounted side (T: Mounted on the Top side, B: Mounted on the Bottom side)S.=Surface mount[PA UNIT] REF ORDER DESCRIPTION M. H/V NO. NO. L

7 - 6M.=Mounted side (T: Mounted on the Top side, B: Mounted on the Bottom side)S.=Surface mount[MAIN UNIT] REF ORDER DESCRIPTION M. H/V NO. NO.

SECTION 8 MECHANICAL PARTS AND DISASSEMBLY8 - 1Screw abbreviationsBT: Self-tapping PH: Pan headZK, ZK3: Black FH: Flat head NI: Nickel SUS: Stainl

8 - 2MP2* (C)MP33 (C)MP20 (C)SP1 (C)MP12* (C)MAIN UnitMP28 (C)MP6 (M)MP1 (M)MP5 (M)MP4 (M)EP7 (M)DS3 (M)MP3 (M)MP28 (C)MP28 (C)R315 (M)MP2 (M)MP28 (C)

SECTION 9 SEMICONDUCTOR INFORMATION• TRANSISTORS AND FET's• DIODES9 - 1BECBCEBECBECBECBECBECGDSSDGBECBECDSG2G1G1G2SDBECBECE1C2B1C1E2B2E1B1B2C1C2

H5 H10 H15 H20 H25 H30 H35 H40 H45 H50 H55 H60 H65 H70 H75 H80 H85 H90 H95 H100 H105H0V5V10V15V0V25V30V35V20V45V40to SPEAKER“SP1” (CHASSIS)J44231SPGND

TABLE OF CONTENTSSECTION 1 SPECIFICATIONSSECTION 2 INSIDE VIEWSSECTION 3 DISASSEMBLY INSTRUCTIONSSECTION 4 OPTIONAL UNIT INSTALLATIONSECTION 5 C

H5H10H15H20H25H30H35H40H45H50H55H60H65H70H75H80H85H90H95H100H105 H0V5V10V15V0V25V30V35V20V45V402012140J5OPV1OPV2OPV3GNDOPT3OPT2OPT1SIGOBUSYNCBREFNCDMI

SECTION 11 BLOCK DIAGRAM11 - 1Explanatory notes +B LINE LPF IC6 LM2902PWR LPF LPF DTMF ENCODE IC6 LM2902PWR LPF IC7 NJM12902V RESET IC8 BD5242G SHIF

SECTION 12 VOLTAGE DIAGRAMS12 - 1%XPLANATORYNOTES6/,4!'%,).%48,).%28,).%#/--/.,).%###P#P##$36#

12 - 2Explanatory notesVOLTAGE LINETX LINERX LINECOMMON LINEC7070.001C70347pC702100pR7140.15L901BLM21P300SL7037.5nHC7340.001D702RB706F-40R7064.7kC7230

SECTION 13 BC-16013 - 1Q12SC4081R410R18R3560R50.12R35R3110kR37120kR28R38R291SS355D2D51SS355C6 10C110.01C120.01C8 0.01C25C26C21C220.10.01C28C23C2410k0

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1-1-32, Kamiminami, Hirano-ku, Osaka 547-0003, JapanS-14303HZ-C1© 2006 Icom Inc.

1 - 1 SECTION 1 SPECIFICATIONS[USA], [GEN] [EUR]GENERAL• Frequency coverage 136–174 MHz• Type of emission Wide 16K0F3E (25.0 kHz)Middle – 14K0F3E (2

SECTION 2 INSIDE VIEWS2 - 1APC amplifier(IC701: TA75S01F)Power amplifier(Q701: RD07MVS1)Drive amplifier(Q702: RD01MUS1)Antenna switch(D701: 1SV307)LC

SECTION 3 DISASSEMBLY INSTRUCTIONS3 - 12 REMOVING THE MAIN UNITq Remove the main seal F.w Unscrew VR nut G, and remove the top plate H.3 REMOVING THE

4 - 1 SECTION 4 OPTIONAL UNIT INSTALLATIONCAUTION! Optional unit installation should be done at authorized Icom servise center only.Install the opti

SECTION 5 CIRCUIT DESCRIPTION5 - 15-1 RECEIVER CIRCUITS5-1-1 ANTENNA SWITCHING CIRCUIT (PA UNIT)The antenna switching circuit toggles the receive (RX

5 - 2The AF signals from the analog switch (IC3, pin 11) are applied to the volume buffer amplifi er (IC6, pin 9). The buffer-amplified AF signals are